tests/driver_io1_xplained: fix typos
tests/driver_io1_xplained: fix typos

josephnoir/RIOT,x3ro/RIOT,OTAkeys/RIOT,aeneby/RIOT,RIOT-OS/RIOT,jasonatran/RIOT,toonst/RIOT,x3ro/RIOT,authmillenon/RIOT,RIOT-OS/RIOT,authmillenon/RIOT,basilfx/RIOT,kYc0o/RIOT,basilfx/RIOT,yogo1212/RIOT,kaspar030/RIOT,jasonatran/RIOT,kaspar030/RIOT,aeneby/RIOT,authmillenon/RIOT,smlng/RIOT,aeneby/RIOT,josephnoir/RIOT,toonst/RIOT,josephnoir/RIOT,toonst/RIOT,aeneby/RIOT,ant9000/RIOT,OlegHahm/RIOT,smlng/RIOT,mtausig/RIOT,aeneby/RIOT,ant9000/RIOT,yogo1212/RIOT,basilfx/RIOT,kYc0o/RIOT,basilfx/RIOT,OTAkeys/RIOT,smlng/RIOT,RIOT-OS/RIOT,jasonatran/RIOT,kYc0o/RIOT,toonst/RIOT,josephnoir/RIOT,OlegHahm/RIOT,authmillenon/RIOT,mtausig/RIOT,OlegHahm/RIOT,josephnoir/RIOT,mtausig/RIOT,miri64/RIOT,OTAkeys/RIOT,OTAkeys/RIOT,kaspar030/RIOT,authmillenon/RIOT,yogo1212/RIOT,RIOT-OS/RIOT,OlegHahm/RIOT,RIOT-OS/RIOT,x3ro/RIOT,OTAkeys/RIOT,jasonatran/RIOT,x3ro/RIOT,ant9000/RIOT,smlng/RIOT,smlng/RIOT,yogo1212/RIOT,ant9000/RIOT,jasonatran/RIOT,kYc0o/RIOT,basilfx/RIOT,miri64/RIOT,authmillenon/RIOT,kaspar030/RIOT,yogo1212/RIOT,miri64/RIOT,mtausig/RIOT,x3ro/RIOT,toonst/RIOT,miri64/RIOT,ant9000/RIOT,kaspar030/RIOT,yogo1212/RIOT,miri64/RIOT,mtausig/RIOT,OlegHahm/RIOT,kYc0o/RIOT